jenkins 这货启动不起来，怎么搞

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This topic created in 3098 days ago, the information mentioned may be changed or developed.

启动的时候，提示存在不正确的 java1.7 版本，但我的版本是 1.8 啊，什么鬼，启动不起来

root@root-59:~$ ps -ef|grep jenkins

root 25034  1931  0 11:26 pts/17   00:00:00 grep --color=auto jenkins

root@root-59:~$ sudo service jenkins start
[sudo] password for root: 

Found an incorrect Java version
Java version found:
java version "1.7.0_171"
OpenJDK Runtime Environment (IcedTea 2.6.13) (7u171-2.6.13-0ubuntu0.14.04.2)
OpenJDK 64-Bit Server VM (build 24.171-b02, mixed mode)

Aborting

root@root-59:~$ java -version

java version "1.8.0_66"
Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
root@root-59:~$

Supplement 1 · May 12, 2018

find出来一个1。7版本的jdk，但我默认的还是1。8啊

Supplement 2 · May 15, 2018

jenkins日志:

31 replies • 2020-12-04 16:41:09 +08:00

UndefinedDiary

May 12, 2018 via Android

Jenkins 什么版本的？？去官网看看依赖的 jdk 需要那个版本。。。

wsds

May 12, 2018

@UndefinedDiary 前 2 天还运行的好好的，不知道怎么停了，然后就启动不了了，应该不是版本问题吧

defunct9

May 12, 2018 via iPhone

开 ssh，让我上去看看

wsds

May 12, 2018

@defunct9 内网啊

UndefinedDiary

May 12, 2018 via Android

@wsds 有多个 jdk ？！

ming2050

May 12, 2018 via iPhone

因为你用 sudo 了搜下 sudo 环境变量了解一下

wanghanlin

May 12, 2018

用 docker 的，省力

wsds

May 12, 2018

@UndefinedDiary 目测至少有 2 个

wsds

May 12, 2018

@mringg 用不用 sudo 都一样

qinxi

May 12, 2018 via Android

卸载 openjdk，结帖

privatezcoding

May 12, 2018

设置一下 Java 的环境变量试试看

carlclone

May 12, 2018 via Android

关机睡觉，结贴

zqcolor

May 12, 2018

试试下面几个命令选择 java 8

https://askubuntu.com/questions/315646/update-java-alternatives-vs-update-alternatives-config-java

sudo update-alternatives --config java
sudo update-alternatives --config javac
sudo update-alternatives --config javadoc

wsds

May 12, 2018

@zqcolor 没用啊

root@root-59:~$ sudo update-alternatives --config java
[sudo] password for root:

There is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java
Nothing to configure.

root@root-59:~$ sudo update-alternatives --config javac
update-alternatives: error: no alternatives for javac

root@root-59:~$ sudo update-alternatives --config javadoc
update-alternatives: error: no alternatives for javadoc

shynome

May 12, 2018 via Android

如果只做 ci/cd , 可以试试 drone.io

qkline

May 12, 2018

明显是 openjdk 搞的鬼，卸载就行了

sutra

May 12, 2018

root@jenkins:~ # grep java_home /usr/local/etc/rc.d/jenkins
# jenkins_java_home (str):
: ${jenkins_java_home="/usr/local/openjdk8"}
java_cmd="${jenkins_java_home}/bin/java"

defunct9

May 12, 2018 via iPhone

@wsds 开不了 ssh，我也没办法。明显 jenkins 的 java 和你起的不是一个。

vjnjc

May 12, 2018 via Android

Jenkins 的用户和你不是同一个，所以你们的环境也不一样，所以他用 Java7，你用 Java8

kaneg

May 12, 2018 via iPhone

因为系统环境的千差万别，这种 Java 多版本引起的问题很常见，所以用 docker 这种专门解决环境差异的方案是终极解决之道

zhantss

May 12, 2018

安装版的 jenkins，默认是创建了一个 jenkins 用户，改这个用户的配置就行
防止发生意外可以改 /etc/default/jenkins 里面的设置，不一定是这个位置，你可以查一下对应软件包的配置文件位置

tedzhou1221

May 13, 2018 via Android

Docker Jenkins 更方便，哈哈

zqcolor

May 13, 2018

那就卸载这个 openjdk7
/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java

然后安装 jdk 8 试试

wsds

May 14, 2018

@zhantss 有这个文件，要改什么内容啊

# defaults for Jenkins automation server

# pulled in from the init script; makes things easier.
NAME=jenkins

# arguments to pass to java

# Allow graphs etc. to work even when an X server is present
JAVA_ARGS="-Djava.awt.headless=true"

#JAVA_ARGS="-Xmx256m"

# make jenkins listen on IPv4 address
#JAVA_ARGS="-Djava.net.preferIPv4Stack=true"

PIDFILE=/var/run/$NAME/$NAME.pid

# user and group to be invoked as (default to jenkins)
JENKINS_USER=$NAME
JENKINS_GROUP=$NAME

# location of the jenkins war file
JENKINS_WAR=/usr/share/$NAME/$NAME.war

# jenkins home location
JENKINS_HOME=/var/lib/$NAME

# set this to false if you don't want Jenkins to run by itself
# in this set up, you are expected to provide a servlet container
# to host jenkins.
RUN_STANDALONE=true

# log location. this may be a syslog facility.priority
JENKINS_LOG=/var/log/$NAME/$NAME.log
#JENKINS_LOG=daemon.info

# Whether to enable web access logging or not.
# Set to "yes" to enable logging to /var/log/$NAME/access_log
JENKINS_ENABLE_ACCESS_LOG="no"

# OS LIMITS SETUP
# comment this out to observe /etc/security/limits.conf
# this is on by default because http://github.com/jenkinsci/jenkins/commit/2fb288474e980d0e7ff9c4a3b768874835a3e92e
# reported that Ubuntu's PAM configuration doesn't include pam_limits.so, and as a result the # of file

wsds

May 14, 2018

@zqcolor 公用环境，不能乱卸载组件啊

wsds

May 15, 2018

https://t1.picb.cc/uploads/2018/05/15/23ICz0.png

zqcolor

May 15, 2018

网上查的，可以试试看

https://stackoverflow.com/questions/49367311/start-jenkins-with-jdk-8-without-changing-system-java-home

Set JENKINS_JAVA option in /etc/sysconfig/jenkins file.

The variable name might be different depending on your operating system and package source but the /etc/sysconfig/jenkins file is usually the configuration file for your jenkins service.

wsds

May 28, 2018

还是不行啊

RX03

Jan 14, 2020

两年了。。。
我自己这样暴力设置可以起来
1. cd /etc/init.d 2. sudo vim jenkins 3. 注释掉 PATH 部分，因为之前编译多个版本的 AOSP，java 环境乱的压批，在 /etc/profile 里 export 了，在这里直接加上 source /etc/profile
ubuntu@linux:/etc/init.d$ ./jenkins -> Correct java version found
最后，docker 大法好

TreePu

Dec 4, 2020

1，安装 jdk1.8

TreePu

Dec 4, 2020

1，安装 JDK1.8：sudo apt-get install openjdk-8-jdk
2，切换 JDK 版本：sudo update-alternatives --config java 输入数字，Enter
3，修改 Jenkins 配置文件的 PATH 为 1.8 的路径
sudo vi /etc/init.d/jenkins
## PATH=/bin:/usr/bin:/sbin:/usr/sbin 旧的
PATH=/usr/lib/jvm/java-8-openjdk-amd64/bin/java 新的
4，重启 Jenkins，成功

今天遇到了，把解决过程分享一下